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Vol. 22 No. 10 (2010): Vol 22 Issue 10

Adsorption of Cadmium and Chromium in Water Body by SBA-15

Yu-Qin Ma
Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022, P.R. China ; College of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, P.R. China
Hui Yu
Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022, P.R. China
Xiao-Dong Li
Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022, P.R. China
Qing-Zhou Zhai
Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022, P.R. China ;
Jing-Bo Xu
College of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, P.R. China

Corresponding Author(s) : Qing-Zhou Zhai

zhaiqingzhou@163.com; zhaiqingzhou@hotmail.com

Asian Journal of Chemistry, Vol. 22 No. 10 (2010): Vol 22 Issue 10

Abstract

Nanoscale SBA-15 molecular sieve was synthesized by hydrothermal method and modified with ethylenediamine tetraacetic acid. The prepared materials were characterized by powder X-ray diffraction and scanning electron microscopy. The modified SBA-15 was used as sorbents to adsorb the heavy metal ions Cd2+ and Cr6+ in water body. The effects of pH, temperature and adsorption time on the efficiency of adsorption were studied and the optimum adsorptive conditions were confirmed. The results showed that the adsorptive effect of the material is the best and adsorptive ratio reaches 99.0 % when the pH is 4, temperature is 35 ºC and adsorption time is 0.5 h.

Keywords

Adsorption Cadmium Chromium SBA-15 molecular sieve EDTA Water body
(1)
Ma, Y.-Q.; Yu, H.; Li, X.-D.; Zhai, Q.-Z.; Xu, J.-B. Adsorption of Cadmium and Chromium in Water Body by SBA-15. ajc 2010, 22, 8219-8230.
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